--- service: a.root-servers.net start-period: '2016-08-13T00:00:00Z' end-period: '2016-08-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3149513003 dns-udp-queries-received-ipv6: 480862789 dns-tcp-queries-received-ipv4: 48468390 dns-tcp-queries-received-ipv6: 5548949 dns-udp-responses-sent-ipv4: 3143701461 dns-udp-responses-sent-ipv6: 480804377 dns-tcp-responses-sent-ipv4: 47515325 dns-tcp-responses-sent-ipv6: 3936526